[zanata/zanata-platform] bac543: fix(warnings): Remove Beta warnings

[GitHub]

  Branch: refs/heads/fix-beta-warnings
  Home:   https://github.com/zanata/zanata-platform
  Commit: bac5439867b40bd8238df3699095b8672e4d9cf6
      https://github.com/zanata/zanata-platform/commit/bac5439867b40bd8238df3699095b8672e4d9cf6
  Author: Damian Jansen <djansen at redhat.com>
  Date:   2017-03-21 (Tue, 21 Mar 2017)

  Changed paths:
    M server/functional-test/src/main/java/org/zanata/page/WebDriverFactory.java
    M server/functional-test/src/main/java/org/zanata/workflow/ClientWorkFlow.java
    M server/gwt-editor/src/main/java/org/zanata/webtrans/shared/validation/action/TabValidation.java
    M server/zanata-test-war/src/main/java/org/zanata/rest/SampleDataResourceImpl.java
    M server/zanata-war/src/main/java/org/zanata/action/CacheAction.java
    M server/zanata-war/src/main/java/org/zanata/adapter/HTMLAdapter.java
    M server/zanata-war/src/main/java/org/zanata/adapter/SubtitleAdapter.java
    A server/zanata-war/src/test/java/org/zanata/CacheActionTest.java

  Log Message:
  -----------
  fix(warnings): Remove Beta warnings

Use escapeHTML4 instead of Guava HTMLEscapers, and
suppress where appropriate.